“…With a high proportion of new energy generation and nonlinear power electronics connected to the grid, the impact of harmonics and interharmonics on power quality is of increasing concern [1]. Harmonics represent grave hazards, such as motor noise, voltage deviation and resonance for transformers, motors, arc furnaces, metering instruments and other industrial equipment [2][3][4]. Moreover, harmonics can also result in grid-voltage fluctuations as well as the flicker, resonance, and over-zero shifts in the voltage waveform [5,6].…”